1) Cerebral artery infarctions 2) Antibiotics-cause of encephalopathy. This podcast for the Neurology Journal begins and closes with Dr. Robert Gross, Editor-in-Chief, briefly discussing highlighted articles from the print issue of Neurology. In the second segment Dr. Justin Sattin interviews Dr. Adam Kelly about his paper on cerebral artery infarctions. In the next segment, Dr. Ryan Overman is reading our e-Pearl of the week about highlights from the e-Pearl archive. In the next part of the podcast Dr. Matthew Flaherty interviews Dr. Steven Lewis on antibiotics as a cause of encephalopathy for our Lesson of the Week. In concluding, there is a brief statement where to find other up-to date patient information and current Patient Page. The participants had nothing to disclose except Drs. Overman, Flaherty and Lewis.